#VU54989 Uncaught Exception in Junos OS Evolved - CVE-2021-0286

Vulnerability identifier: #VU54989

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-0286

CWE-ID: CWE-248

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Junos OS Evolved
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of exceptional conditions when processing packets in Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx). A remote attacker can send specially crafted packets to the affected device and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO - 20.4, 21.1-EVO - 21.1, 21.2-EVO

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External links
https://kb.juniper.net/JSA11188

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.